globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116703
论文题名:
The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.)
作者: Yan H.; Zhao N.; Zhou P.; Liu C.; Fei H.; Li M.; Liu F.; Yang Y.; Yang W.; Dodson J.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2021
卷: 555
语种: 英语
中文关键词: daily growth rate ; MJO ; proxy records ; Tridacna shell ; ultra-high-resolution
英文关键词: Artificial life ; Molluscs ; Oceanography ; Shellfish ; Spectrum analysis ; Tropics ; Effective solar radiations ; Fluorescence intensities ; Geochemical proxies ; Instrumental data ; Intraseasonal variability ; Madden-Julian oscillation ; Northern South China Sea ; Ultrahigh resolution ; Climatology ; bivalve ; climate signal ; detection method ; diurnal variation ; Madden-Julian oscillation ; paleoclimate ; proxy climate record ; shell ; Pacific Ocean ; Pacific Ocean (West) ; South China Sea ; Tridacna
英文摘要: The Madden-Julian Oscillation (MJO) is the most prominent mode of intraseasonal variability in the tropics which is responsible for much of the observed intraseasonal climate variance not only there but also in higher latitudes. The short time-span of modern instrumental data limits our understanding of the MJO and obtaining MJO information from natural archives could extend this greatly. Here a Giant Clam shell (Tridacna spp.) with a life span about two years (from January 29, 2012 to December 9, 2013) was collected from the northern South China Sea, in the western Pacific. Several daily to hourly resolution biological and geochemical proxy records, including the daily growth rate, hourly Fe/Ca, Sr/Ca and fluorescence intensity, were developed to compare these with local weather/climate records. Spectral analyses suggested that these ultra-high resolution proxy records can clearly record MJO variability in the tropics. The substantial connection between the proxy records and MJO possibly linking through the local effective solar radiation, SST, precipitation and wind speeds. This is the first record of the MJO signal in a natural paleoclimate archive. Our findings provide new insights to study the MJO beyond the instrumental records, and since fossil Tridacna shells from different geological times can be used to investigate the MJO under various climate conditions. © 2020 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165726
Appears in Collections:气候变化与战略

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作者单位: State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China; Open Studio for Oceanic-Continental Climate and Environment Changes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China

Recommended Citation:
Yan H.,Zhao N.,Zhou P.,et al. The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.)[J]. Earth and Planetary Science Letters,2021-01-01,555
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